Export your Pi Toolbox data as MAT

Prerequisites

• Software: Pi Toolbox Pro (Windows) — MAT export is only available with the Pro subscription
• Compatible logger: Pi Sigma, Pi Delta, Pi Omega, Cosworth ICD, Pi Research systems
• Output format: .mat (MATLAB)

Context

Pi Research (now Cosworth) systems are primarily used in motorsport. Brake Point supports import via the MAT format, accessible from the Outline Export function in Pi Toolbox Pro. This format automatically contains all session channels without manual selection.

Step 1 — Open the session in Pi Toolbox Pro

1. Connect the logger to your computer
2. Open Pi Toolbox Pro
3. Download and open the desired session

Step 2 — Export as MAT (Outline Export)

1. Select the desired outline in Pi Toolbox
2. Right-click on the outline → Export → MAT
3. Select each required channel (see list below)
4. Click Export and save the .mat file

Note: the Outline Export function is only available with a Pi Toolbox Pro subscription. Lite versions do not offer this export option.

Step 3 — Import into Brake Point

1. Log in to app.brakepoint.io
2. Click Import a session
3. Select your .mat file (or a .zip containing the .mat file)
4. Brake Point automatically detects the Pi Toolbox format

Required channels

Brake Point checks for the main channels in the MAT file. Metadata is optional.

GPS channels (10 Hz)

Channel	Data
gps_lat	Latitude
gps_long	Longitude
gps_speed	GPS speed
gps_altitude	Altitude
gps_mode	GPS mode
gps_nSat	Satellite count
gps_quality	Signal quality
gps_time	GPS timestamp

Engine and chassis channels (50 Hz)

Channel	Data
Speed	ECU speed
RPM	Engine RPM
ecu_throttle_pedal	Throttle position (0-100%)
psm_pbrk	Brake pressure (bar)
Raw_gbx_gear_ratio_Rx	Gear ratio
X_Acceleration	Lateral acceleration
Y_Acceleration	Longitudinal acceleration

PSM channels (10 Hz)

Channel	Data
psm_acc_lat	Lateral acceleration (PSM)
psm_acc_long	Longitudinal acceleration (PSM)

Steering channel (100 Hz)

Channel	Data
Raw_eps_steerangle_Rx	Steering angle

Lap and distance channels (5-100 Hz)

Channel	Data
Lap_Distance	Lap distance (high frequency)
lap_distance	Lap distance
lap_number	Lap number
lap_time	Current lap time
lap_time_prev	Previous lap time

Metadata (optional)

These channels are used to pre-fill session information but are not required.

Channel	Data
TbxCarName	Vehicle name
TbxDriverName	Driver name
TbxOuting	Outing number
TbxShortComment	Comment
TbxTrackName	Track name

Tips

• Manual channel selection: during Outline Export, you must search for and select each channel individually. Refer to the list above to ensure you include all required channels.
• Brake pressure: the psm_pbrk channel is in bar. Brake Point automatically converts it to percentage (0-100%).
• Gear: the Raw_gbx_gear_ratio_Rx channel contains the raw ratio. Brake Point converts it to a gear number (0-7).
• Speed: Brake Point uses GPS speed (gps_speed) as priority, with fallback to ECU speed (Speed) if needed.